The pouch of Trichosurus vulpecula, a test object for oestrogenic activity. Letter to the editor

Caged opossums (Trichosurus vulpecula) were fed on leaves of one or more of their normal food plants and on a pelleted commercial food ration. The number of faecal pellets voided per day (24 hours) was proportional to the amount of food eaten. Opossums maintaining a constant body weight produced 98.3 (plus or minus standard error 3.0) pellets per day, confirming earlier estimates from less natural diets.

Author Bolliger, A.; Canny, A.J.
Year 1940
Secondary title Australian Journal of Science
Volume 3
Pages 31-442